# Fastapi Async > FastAPI com endpoints async, Pydantic v2 e dependency injection Use when this capability is needed. - Skill: `tomevault-io/fastapi-async` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/fastapi-async` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/fastapi-async/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/fastapi-async --- - Endpoints sempre `async def`. - Pydantic v2 (`model_config`, não `Config` antiga). - DB via `Depends(get_session)`; nunca abrir session global. - HTTP externo: `httpx.AsyncClient` injetado, nunca `requests`. - `response_model` explícito em todo endpoint. - Erros via `HTTPException` ou exception handler global. - Background tasks pra trabalho assíncrono curto; queue real (Celery/RQ) pra trabalho longo. --- > Source: [alanpcf/cocada](https://github.com/alanpcf/cocada) — distributed by [TomeVault](https://tomevault.io).